Oh hello!  Well I know about blackjack, it's also called twenty one.  There's usually a dealer and several players.   The players compete against the dealer, one at a time.  The players don't compete against each other.
Hello!  I've played a bit of blackjack in Las Vegas and some Indian casinos.  I'm not terrible, but sometimes I can make a bad decision or two.
Hello there, are you familiar with any card games?
Blackjack, also known as twenty-one, is a comparing card game between usually several players and a dealer, where each player in turn competes against the dealer, but players do not play against each other.
Здравствуйте, вы знакомы с какими-нибудь карточными играми?
Блэкджек, также известный как "двадцать одно", - это карточная игра для сравнения, в которой обычно участвуют несколько игроков и дилер, где каждый игрок, в свою очередь, соревнуется с дилером, но игроки не играют друг против друга.